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Finding the Fourth Proportional to 16,166.40, 22,291.20 and 13,363.20

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Solution

The fourth proportional to 16,166.40, 22,291.20 and 13,363.20 is: 18,425.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,166.40 : 22,291.20 = 13,363.20 : x
  2. Step 2: Convert to fraction form
    16,166.40/22,291.20 = 13,363.20/x
  3. Step 3: Cross multiply
    16,166.40x = 22,291.20 × 13,363.20
  4. Step 4: Simplify right side
    16,166.40x = 297,881,763.84
  5. Step 5: Solve for x
    x = 297,881,763.84/16,166.40
  6. Step 6: Final answer
    x = 18,425.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.